INFO: task hung in raw_release (2)
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syzbot
Dec 29, 2020, 6:35:16 AM12/29/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 13d2ce42 Linux 4.19.163
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17687447500000
kernel config: https://syzkaller.appspot.com/x/.config?x=fac7c3360835a4e0
dashboard link: https://syzkaller.appspot.com/bug?extid=600f542d6b472ad60c39
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+600f54...@syzkaller.appspotmail.com
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0409 tx timeout
Bluetooth: hci3: command 0x041b tx timeout
Bluetooth: hci3: command 0x040f tx timeout
Bluetooth: hci3: command 0x0419 tx timeout
INFO: task syz-executor.3:10362 blocked for more than 140 seconds.
Not tainted 4.19.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D28288 10362 8114 0x80000006
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xbed/0x2be0 kernel/exit.c:890
do_group_exit+0x125/0x310 kernel/exit.c:993
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198
retint_user+0x8/0x18
RIP: 0033:0x4039d7
Code: 00 00 00 48 83 ec 08 48 8b 15 dd 19 2b 01 48 8b 05 ce 19 2b 01 48 39 d0 48 8d 8a 00 00 00 01 72 17 48 39 c8 73 12 48 8d 50 04 <89> 38 48 89 15 b0 19 2b 01 48 83 c4 08 c3 48 89 c6 bf 10 2e 4d 00
RSP: 002b:00007ffd1bc6d0b0 EFLAGS: 00010287
RAX: 0000001b2ed27000 RBX: 0000000000000001 RCX: 0000001b2fd20000
RDX: 0000001b2ed27004 RSI: 0000000080000000 RDI: 0000000058e9be5b
RBP: 000000000119c008 R08: 0000000000001e5c R09: 0000000058e9be5f
R10: 00007ffd1bc6d260 R11: 0000000000000000 R12: 00007fb6f2984008
R13: 00000000000199d8 R14: 00007fb6f2984000 R15: ffffffff86efdcdc
Showing all locks held in the system:
3 locks held by kworker/u4:2/108:
#0: 00000000812bde5c ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126
#1: 000000008e10b6b1 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130
#2: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:520
1 lock held by khungtaskd/1566:
#0: 00000000cca71277 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7795:
#0: 00000000a317d27e (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by syz-executor.3/10362:
#0: 00000000d38f6923 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000d38f6923 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.5/10391:
2 locks held by syz-executor.2/10394:
2 locks held by syz-executor.4/10395:
#0: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x1d8/0x335 net/core/net_namespace.c:434
#1: 0000000024680eb6 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: 0000000024680eb6 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667
1 lock held by syz-executor.0/10407:
2 locks held by syz-executor.1/10400:
1 lock held by syz-executor.3/10494:
#0: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x1d8/0x335 net/core/net_namespace.c:434
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10391 Comm: syz-executor.5 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__pvclock_read_cycles arch/x86/include/asm/pvclock.h:85 [inline]
RIP: 0010:pvclock_clocksource_read+0x155/0x520 arch/x86/kernel/pvclock.c:87
Code: 03 00 00 4c 89 c1 4c 89 c7 4c 89 de 0f be 53 1c 48 c1 e9 03 83 e7 07 48 c1 ee 03 0f b6 0c 29 0f b6 34 2e 40 38 f9 40 0f 9e c7 <84> c9 0f 95 c1 40 84 cf 0f 85 5d 02 00 00 4c 89 d9 83 e1 07 40 38
RSP: 0018:ffff8880ba007ea0 EFLAGS: 00000046
RAX: 00000079bd179dea RBX: ffffffff8c65b000 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffffff8c65b018 R09: ffffffff8c65b00f
R10: ffffffff8c65b017 R11: ffffffff8c65b01b R12: ffffffff8c65b003
R13: fffffbfff18cb601 R14: ffffffff8c65b01d R15: ffffffff8c65b010
FS: 00007fbae8083700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb2670c7020 CR3: 000000008f06d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
kvm_clock_read arch/x86/kernel/kvmclock.c:103 [inline]
kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:115
paravirt_sched_clock arch/x86/include/asm/paravirt.h:175 [inline]
sched_clock+0x2a/0x40 arch/x86/kernel/tsc.c:245
sched_clock_cpu+0x18/0x1b0 kernel/sched/clock.c:370
irqtime_account_irq+0x63/0x280 kernel/sched/cputime.c:59
account_irq_enter_time include/linux/vtime.h:108 [inline]
irq_enter+0x62/0xd0 kernel/softirq.c:357
entering_irq arch/x86/include/asm/apic.h:525 [inline]
entering_ack_irq arch/x86/include/asm/apic.h:531 [inline]
smp_apic_timer_interrupt+0x1f/0x550 arch/x86/kernel/apic/apic.c:1090
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:806 [inline]
RIP: 0010:lock_release+0xc2/0x8b0 kernel/locking/lockdep.c:3922
Code: 00 00 45 85 d2 0f 85 8b 03 00 00 48 c7 c0 80 81 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 c3 06 00 00 <48> 83 3d 96 ec a4 08 00 0f 84 1b 05 00 00 9c 58 0f 1f 44 00 00 48
RSP: 0018:ffff8880672a7890 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff13e3030 RBX: ffff8880a37a8380 RCX: ffffc90010588000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880a37a8c04
RBP: ffffffff89f85c60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1100ce54f15
R13: ffffffff86f4ac41 R14: 0000000000000002 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:247 [inline]
rcu_read_unlock include/linux/rcupdate.h:681 [inline]
inet_twsk_purge+0x558/0x7b4 net/ipv4/inet_timewait_sock.c:298
ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156
setup_net+0x3d1/0x720 net/core/net_namespace.c:332
copy_net_ns+0x1f7/0x335 net/core/net_namespace.c:438
create_new_namespaces+0x3f6/0x7b0 kernel/nsproxy.c:107
copy_namespaces+0x325/0x3c0 kernel/nsproxy.c:165
copy_process.part.0+0x3a59/0x8200 kernel/fork.c:1919
copy_process kernel/fork.c:1713 [inline]
_do_fork+0x22f/0xf30 kernel/fork.c:2228
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e299
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbae8082c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e299
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 000000000119bfd0 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffce5c50b7f R14: 00007fbae80839c0 R15: 000000000119bf8c
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 13d2ce42 Linux 4.19.163
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=17687447500000
kernel config: https://syzkaller.appspot.com/x/.config?x=fac7c3360835a4e0
dashboard link: https://syzkaller.appspot.com/bug?extid=600f542d6b472ad60c39
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+600f54...@syzkaller.appspotmail.com
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0409 tx timeout
Bluetooth: hci3: command 0x041b tx timeout
Bluetooth: hci3: command 0x040f tx timeout
Bluetooth: hci3: command 0x0419 tx timeout
INFO: task syz-executor.3:10362 blocked for more than 140 seconds.
Not tainted 4.19.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3 D28288 10362 8114 0x80000006
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xbed/0x2be0 kernel/exit.c:890
do_group_exit+0x125/0x310 kernel/exit.c:993
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198
retint_user+0x8/0x18
RIP: 0033:0x4039d7
Code: 00 00 00 48 83 ec 08 48 8b 15 dd 19 2b 01 48 8b 05 ce 19 2b 01 48 39 d0 48 8d 8a 00 00 00 01 72 17 48 39 c8 73 12 48 8d 50 04 <89> 38 48 89 15 b0 19 2b 01 48 83 c4 08 c3 48 89 c6 bf 10 2e 4d 00
RSP: 002b:00007ffd1bc6d0b0 EFLAGS: 00010287
RAX: 0000001b2ed27000 RBX: 0000000000000001 RCX: 0000001b2fd20000
RDX: 0000001b2ed27004 RSI: 0000000080000000 RDI: 0000000058e9be5b
RBP: 000000000119c008 R08: 0000000000001e5c R09: 0000000058e9be5f
R10: 00007ffd1bc6d260 R11: 0000000000000000 R12: 00007fb6f2984008
R13: 00000000000199d8 R14: 00007fb6f2984000 R15: ffffffff86efdcdc
Showing all locks held in the system:
3 locks held by kworker/u4:2/108:
#0: 00000000812bde5c ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126
#1: 000000008e10b6b1 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130
#2: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:520
1 lock held by khungtaskd/1566:
#0: 00000000cca71277 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7795:
#0: 00000000a317d27e (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by syz-executor.3/10362:
#0: 00000000d38f6923 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000d38f6923 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.5/10391:
2 locks held by syz-executor.2/10394:
2 locks held by syz-executor.4/10395:
#0: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x1d8/0x335 net/core/net_namespace.c:434
#1: 0000000024680eb6 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: 0000000024680eb6 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667
1 lock held by syz-executor.0/10407:
2 locks held by syz-executor.1/10400:
1 lock held by syz-executor.3/10494:
#0: 000000006a5dc779 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x1d8/0x335 net/core/net_namespace.c:434
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1566 Comm: khungtaskd Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10391 Comm: syz-executor.5 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__pvclock_read_cycles arch/x86/include/asm/pvclock.h:85 [inline]
RIP: 0010:pvclock_clocksource_read+0x155/0x520 arch/x86/kernel/pvclock.c:87
Code: 03 00 00 4c 89 c1 4c 89 c7 4c 89 de 0f be 53 1c 48 c1 e9 03 83 e7 07 48 c1 ee 03 0f b6 0c 29 0f b6 34 2e 40 38 f9 40 0f 9e c7 <84> c9 0f 95 c1 40 84 cf 0f 85 5d 02 00 00 4c 89 d9 83 e1 07 40 38
RSP: 0018:ffff8880ba007ea0 EFLAGS: 00000046
RAX: 00000079bd179dea RBX: ffffffff8c65b000 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffffff8c65b018 R09: ffffffff8c65b00f
R10: ffffffff8c65b017 R11: ffffffff8c65b01b R12: ffffffff8c65b003
R13: fffffbfff18cb601 R14: ffffffff8c65b01d R15: ffffffff8c65b010
FS: 00007fbae8083700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb2670c7020 CR3: 000000008f06d000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
kvm_clock_read arch/x86/kernel/kvmclock.c:103 [inline]
kvm_sched_clock_read+0x14/0x40 arch/x86/kernel/kvmclock.c:115
paravirt_sched_clock arch/x86/include/asm/paravirt.h:175 [inline]
sched_clock+0x2a/0x40 arch/x86/kernel/tsc.c:245
sched_clock_cpu+0x18/0x1b0 kernel/sched/clock.c:370
irqtime_account_irq+0x63/0x280 kernel/sched/cputime.c:59
account_irq_enter_time include/linux/vtime.h:108 [inline]
irq_enter+0x62/0xd0 kernel/softirq.c:357
entering_irq arch/x86/include/asm/apic.h:525 [inline]
entering_ack_irq arch/x86/include/asm/apic.h:531 [inline]
smp_apic_timer_interrupt+0x1f/0x550 arch/x86/kernel/apic/apic.c:1090
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/paravirt.h:806 [inline]
RIP: 0010:lock_release+0xc2/0x8b0 kernel/locking/lockdep.c:3922
Code: 00 00 45 85 d2 0f 85 8b 03 00 00 48 c7 c0 80 81 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 c3 06 00 00 <48> 83 3d 96 ec a4 08 00 0f 84 1b 05 00 00 9c 58 0f 1f 44 00 00 48
RSP: 0018:ffff8880672a7890 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff13e3030 RBX: ffff8880a37a8380 RCX: ffffc90010588000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880a37a8c04
RBP: ffffffff89f85c60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1100ce54f15
R13: ffffffff86f4ac41 R14: 0000000000000002 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:247 [inline]
rcu_read_unlock include/linux/rcupdate.h:681 [inline]
inet_twsk_purge+0x558/0x7b4 net/ipv4/inet_timewait_sock.c:298
ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156
setup_net+0x3d1/0x720 net/core/net_namespace.c:332
copy_net_ns+0x1f7/0x335 net/core/net_namespace.c:438
create_new_namespaces+0x3f6/0x7b0 kernel/nsproxy.c:107
copy_namespaces+0x325/0x3c0 kernel/nsproxy.c:165
copy_process.part.0+0x3a59/0x8200 kernel/fork.c:1919
copy_process kernel/fork.c:1713 [inline]
_do_fork+0x22f/0xf30 kernel/fork.c:2228
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e299
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbae8082c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e299
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 000000000119bfd0 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffce5c50b7f R14: 00007fbae80839c0 R15: 000000000119bf8c
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Apr 13, 2021, 8:23:16 AM4/13/21
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 830a059c Linux 4.19.186
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1439f8eed00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7415cc95f9edb7b9
dashboard link: https://syzkaller.appspot.com/bug?extid=600f542d6b472ad60c39
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124723f9d00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+600f54...@syzkaller.appspotmail.com
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci3: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
INFO: task syz-executor.2:11205 blocked for more than 140 seconds.
Not tainted 4.19.186-syzkaller #0
do_group_exit+0x125/0x310 kernel/exit.c:967
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: Bad RIP value.
RSP: 002b:00007ffecdb219a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 0000000000000004 RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffecdb21b40 R14: 000000000056bf60 R15: 00000000001bef3b
INFO: task syz-executor.1:11217 blocked for more than 140 seconds.
Not tainted 4.19.186-syzkaller #0
do_group_exit+0x125/0x310 kernel/exit.c:967
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: Bad RIP value.
RSP: 002b:00007ffc7aee5b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 0000000000000004 RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc7aee5d30 R14: 000000000056bf60 R15: 00000000001bf128
Showing all locks held in the system:
1 lock held by khungtaskd/1569:
#0: 000000008f0ebe13 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7796:
#0: 00000000ece2a780 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by syz-executor.2/11205:
#0: 00000000f2fea4b1 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000f2fea4b1 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 00000000997e4e6b (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.1/11217:
#0: 00000000703458f1 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000703458f1 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 00000000997e4e6b (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.2/11303:
2 locks held by syz-executor.4/11328:
1 lock held by syz-executor.1/11334:
2 locks held by syz-executor.0/11337:
1 lock held by syz-executor.5/11360:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.186-syzkaller #0
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
Code: 3d dc ff 3c 0b 01 7f 02 5d c3 89 ef 5d e9 60 96 c8 06 48 c7 c7 00 77 65 8c e8 34 a7 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48
RSP: 0018:ffff8880ba107e98 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89cf41a0 RCX: 0000000000000020
RDX: 1ffffffff139e836 RSI: 00000000000000d8 RDI: 0000000000000380
RBP: ffff8880ba11e280 R08: ffffffff8c663058 R09: 0000000000000000
R10: 0000000000000007 R11: ffffffff8c66305b R12: 00000000000000d8
R13: 0000000000000000 R14: ffff8880ba124c80 R15: ffff8880ba124cf0
FS: 00000000027d8400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460
clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48
hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1552
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline]
RIP: 0010:inet_twsk_purge+0x154/0x7c0 net/ipv4/inet_timewait_sock.c:269
Code: e8 51 f2 8c fa 0f b6 1d 88 36 39 04 31 ff 89 de e8 71 f3 8c fa 84 db 0f 84 ea 04 00 00 e8 34 f2 8c fa 48 8b 44 24 18 80 38 00 <0f> 85 c8 04 00 00 48 8b 44 24 10 48 8b 28 49 89 ec 89 eb eb 21 e8
RSP: 0018:ffff8880815c7940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed1046ae7125 RBX: 0000000000000001 RCX: ffffffff86d57086
RDX: 0000000000000000 RSI: ffffffff86d56b8c RDI: 0000000000000001
RBP: 0000000000067124 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000ce249
R13: 0000000000000002 R14: 0000000000000002 R15: dffffc0000000000
copy_process kernel/fork.c:1709 [inline]
_do_fork+0x22f/0xf30 kernel/fork.c:2218
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc7aee5b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc7aee5d30 R14: 000000000056bf60 R15: 00000000001bfd86
HEAD commit: 830a059c Linux 4.19.186
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1439f8eed00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7415cc95f9edb7b9
dashboard link: https://syzkaller.appspot.com/bug?extid=600f542d6b472ad60c39
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124723f9d00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+600f54...@syzkaller.appspotmail.com
Bluetooth: hci5: command 0x0406 tx timeout
Bluetooth: hci4: command 0x0406 tx timeout
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
INFO: task syz-executor.2:11205 blocked for more than 140 seconds.
Not tainted 4.19.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28040 11205 9732 0x80000006
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xbf3/0x2be0 kernel/exit.c:870
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_group_exit+0x125/0x310 kernel/exit.c:967
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: Bad RIP value.
RSP: 002b:00007ffecdb219a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 0000000000000004 RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffecdb21b40 R14: 000000000056bf60 R15: 00000000001bef3b
INFO: task syz-executor.1:11217 blocked for more than 140 seconds.
Not tainted 4.19.186-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D28288 11217 9733 0x80000006
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0xbf3/0x2be0 kernel/exit.c:870
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:72
unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
raw_release+0x58/0x820 net/can/raw.c:358
__sock_release+0xcd/0x2a0 net/socket.c:579
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_group_exit+0x125/0x310 kernel/exit.c:967
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: Bad RIP value.
RSP: 002b:00007ffc7aee5b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: 0000000000000004 RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000001 RSI: 0000000000000003 RDI: 000000000000001d
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc7aee5d30 R14: 000000000056bf60 R15: 00000000001bf128
Showing all locks held in the system:
#0: 000000008f0ebe13 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7796:
#0: 00000000ece2a780 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by syz-executor.2/11205:
#0: 00000000f2fea4b1 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000f2fea4b1 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 00000000997e4e6b (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.1/11217:
#0: 00000000703458f1 (&sb->s_type->i_mutex_key#13){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
#0: 00000000703458f1 (&sb->s_type->i_mutex_key#13){+.+.}, at: __sock_release+0x86/0x2a0 net/socket.c:578
#1: 00000000997e4e6b (pernet_ops_rwsem){++++}, at: unregister_netdevice_notifier+0x7b/0x330 net/core/dev.c:1708
2 locks held by syz-executor.2/11303:
2 locks held by syz-executor.4/11328:
1 lock held by syz-executor.1/11334:
2 locks held by syz-executor.0/11337:
1 lock held by syz-executor.5/11360:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1569 Comm: khungtaskd Not tainted 4.19.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
NMI backtrace for cpu 1
CPU: 1 PID: 11334 Comm: syz-executor.1 Not tainted 4.19.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109
Code: 3d dc ff 3c 0b 01 7f 02 5d c3 89 ef 5d e9 60 96 c8 06 48 c7 c7 00 77 65 8c e8 34 a7 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48
RSP: 0018:ffff8880ba107e98 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89cf41a0 RCX: 0000000000000020
RDX: 1ffffffff139e836 RSI: 00000000000000d8 RDI: 0000000000000380
RBP: ffff8880ba11e280 R08: ffffffff8c663058 R09: 0000000000000000
R10: 0000000000000007 R11: ffffffff8c66305b R12: 00000000000000d8
R13: 0000000000000000 R14: ffff8880ba124c80 R15: ffff8880ba124cf0
FS: 00000000027d8400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc776a14000 CR3: 0000000097035000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
apic_write arch/x86/include/asm/apic.h:388 [inline]
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460
clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48
hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1552
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline]
RIP: 0010:inet_twsk_purge+0x154/0x7c0 net/ipv4/inet_timewait_sock.c:269
Code: e8 51 f2 8c fa 0f b6 1d 88 36 39 04 31 ff 89 de e8 71 f3 8c fa 84 db 0f 84 ea 04 00 00 e8 34 f2 8c fa 48 8b 44 24 18 80 38 00 <0f> 85 c8 04 00 00 48 8b 44 24 10 48 8b 28 49 89 ec 89 eb eb 21 e8
RSP: 0018:ffff8880815c7940 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed1046ae7125 RBX: 0000000000000001 RCX: ffffffff86d57086
RDX: 0000000000000000 RSI: ffffffff86d56b8c RDI: 0000000000000001
RBP: 0000000000067124 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000ce249
R13: 0000000000000002 R14: 0000000000000002 R15: dffffc0000000000
ops_exit_list+0xf9/0x150 net/core/net_namespace.c:156
setup_net+0x3d1/0x720 net/core/net_namespace.c:332
copy_net_ns+0x1f7/0x340 net/core/net_namespace.c:438
setup_net+0x3d1/0x720 net/core/net_namespace.c:332
create_new_namespaces+0x3f6/0x7b0 kernel/nsproxy.c:107
copy_namespaces+0x325/0x3c0 kernel/nsproxy.c:165
copy_process.part.0+0x3a59/0x8260 kernel/fork.c:1915
copy_namespaces+0x325/0x3c0 kernel/nsproxy.c:165
copy_process kernel/fork.c:1709 [inline]
_do_fork+0x22f/0xf30 kernel/fork.c:2218
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc7aee5b98 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 00000000e1004d7c
RBP: 00000000004bf9fb R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc7aee5d30 R14: 000000000056bf60 R15: 00000000001bfd86
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